I had a mailing from someone else about something similar recently - coincidence or have you guys got together on it?

Others are superficially similar in appearance but different. As ex fabricators, I gather they have home-made their own from quite heavy steel. They had the idea around the same time I was investigating them. There is no connection between our product and theirs.

Ours are being professionally manufactured as a flat pack product with more features. And ours will be considerably cheaper.